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Learn more about the Thermalright, Inc. U120eXtrem1366RT R-C

Model

Spec

Physical Spec

Fan Dimensions

120 x 120 x 25mm

Heatsink Dimensions

132 x 63 x 160.5mm

Weight

790g

Features

Features

Heat pipes: Six heat pipesVentilated fins to increase better air flow to achieve optimal performance under high or low air flow from the fan.Uses high quality aluminum fins for best balance of heat absorption and conduction.Utilizes six high quality 6mm heatpipes, strategically positioned to pick up the heat from the CPU.Proprietary bent winglet design to minimize airflow resistance.Heat pipes soldered to base (nickel plated) and fins for optimum heat transfer.Stack of 48 pieces of aluminum fins, the most over any other heatsinks in the market. Can be covered entirely by a 120mm fan to absorb all in-coming air flow.Includes one Ultra low noise “Fluid Dynamic Bearing” fan (1600RPM)Includes the new bolt-thru-board retention brackets for Intel Socket 1366

Rating: 5/5This Heatsink is the best when combined with the right paste

Pros: This is by far the best Heatsink on the market if installed correctly. Not Bulky like the DH-14. Can set up push pull on it. Cools 980x 990x to the TEENS at Idle. See Other thoughts

Cons: Wish they would include two 90cfm fans such as the Cooler master Sickle Flow fans. The .37 amp version which is hard to find anymore.

Other Thoughts: Here is is people. This Heatsinks surface is slightly convex and very flat. WIth the exception of the microridges its perfect for center pressure and blows any other Heatsink away in CPU contact. However, putting TOO MUCH Paste or Stiff Pastes on ruins the effectiveness of this Cooler. The best Paste to use with this is MX-3. MX4 is too stiff even though its supposed to be better. Arctic silver 5 works well but is overrated because its silver. I have tested so many of these heatsinks with different thermal pastes my head spins from it! But the bottom line is this.. This Heatsink with MX-3 is the best combination for cooling. If you have the patience and want the best results, Lap the bottom of this SLIGHTLY, DO NOT Go through the nickle plating! Just enough to take the microridges down a bit using 2000 grit wet paper taped to a mirror or glass. When you apply the MX-3 paste use literally the size of half a pea. You can also use the #5 dice method if you use very little in each spot

Rating: 5/5Beautiful cooler

Pros: Thermalright knows what they're doing. They don't put fancy copyright information on the packaging, they'd rather let the product speak for itself. And it does - everything about these fans is quality - even the box it comes in! From the case sticker, to the solid metal base plate (with adjustable screws to fit your CPU!!!) to the quality of the heatsink, and everything in between. Setup was incredibly easy - even the mounting brackets and everything fit perfectly into place. Got the temps inside my case to drop considerably. I researched high and low for a CPU cooler this good, and there's nothing that even remotely comes close. The fans are incredibly solid and very well constructed, and they spin really quietly.

Cons: The clips holding the fan are a bit cheap. Pressure adjuster can be a bit difficult to get to without the proper tools in a tight case. But other than that there really aren't any.

Rating: 5/5Good CPU cooler cools i7 990X

Pros: With room temp at 30C, the heatsink holds my Intel i7 990X to 30C (CPUTIN in "CPUID Hardware Monitor") when all 6 cores are at 0% load. Running "Prime95" to keep all cores at 100% pushes the CPUTIN temp to between 69C and 77C. (All 6 cores fluctuate between 57C and 67C over time.) "Core Temp 0.99.8" verifies the 6 core temps. Asus "PC Probe 2" agrees with the CPUIN temps.

Cons: It's difficult to attach the spring loaded screws to the cross piece (called the "Mounting Plate") that holds the heatsink onto the CPU. I had to use a pair of pliers (in my bare hands) to slightly bend (a few mm) the Mounting Plate. This allowed the screws to grab and tightening them was then easy.

The fact that the 6 cores differ by around 5C at any time may mean that the bottom of the heatsink is not perfectly flat.

Don't bother going to the Thermalright website to check for "Important" updates for the installation instructions.

Other Thoughts: The heatsink easily fits my Asus P6X58D Premium board. There is no problem clearing the RAM when the fan is mounted on the opposite side from the RAM sockets.

The top of the heat sink has about .5" clearance inside my CalPC tower (7.5" wide) case.

I have replaced the 1600rpm stock 120mmX25mm fan with a 2000rpm Cooler Master 120mmX25mm fan. I have two 120mmX25mm Delta fans (3400rpm and 4000rpm) on order and intend to try them out. If I can work out a secure way to hold a second fan in place, I may try a push pull configuration.

I leave my case cover off because I don't have any working case fans. (I have two Delta 92mm fans on order.)

Don't forget to remove the clear plastic cover from the bottom of the heatsink before installation, and of course mount the back plate before putting the motherboard in your case.

Rating: 4/5Works very well

Cons: BIG, can run into RAM slots or potentially hit MB heat sinks or other elements. Removing the fan can difficult once heat sink is in place.

Other Thoughts: Overall this heat sink has performed quite well on my i7 960 keeping temps will under 30C at idle and 50C under prolonged heavy load. The fan, which turns at 1,600 RPM constantly (in my setup) is very quiet and almost unnoticeable in my large case.

Unlike many other coolers, this clears the components on my Asus motherboard and fits very tightly to the CPU. Even without Arctic Silver thermal paste, this unit performs well. When compared to a Noctua NH-U12DX, it is vastly superior.

The fan leads are rather cheap looking wire that's not wrapped, but technically it works. I added braided material over the fan wires with heat shrink tubing (as should have been done in the first place) for a cleaner, more professional, look.

Rating: 4/5

Pros: Wow this thing is amazing. I can rest my hand on the heatsink without it burning. That's with it ideling though but still.

My processor hovers right around 30C while ideling and about 37C - 40C when gaming. I also used Arctic Silver 5 though.

Cons: The way you attach it to your motherboard is very tricky. When I was installing the spring loaded screws, I had to have a friend hold down the heatsink on top of my processor while I pushed as hard as I could to get the screws to reach the thread hole. I felt like I was going to break something. It was very nerve racking; If I was Thermalright I'd supply just slightly longer screws. Seriously, a centimeter or 2 more would make it WAY easier.

Other Thoughts: For the love, do not underestimate the size of this thing! I have an ASUS P6X58D Premium and this thing only just fits. Make sure you measure your motherboard to make sure this thing will fit. Also, it's very tall so check the width of your case too.

Rating: 5/5

Pros: Very good mount on 1366 socket.Fan mount is easy to install.Cools just as good as my water cooling system.Good value for the price.Keeps good control of temperatures under full load.

Cons: Fan is a 3 pin plugin, I switched to a 4 pin fan.Tall and the bottom surface is not perfectly smooth.Depending on the direction this mounted one memory dimm can be blocked.I have the fan sucking not pushing so the dimm would not be blocked.

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